Shape-stabilized phase change materials with high phase change enthalpy based on synthetic comb-like poly(acrylonitrile-co-ethylene glycol) for thermal management
Shape-stabilized phase change materials with high phase change enthalpy based on synthetic comb-like poly(acrylonitrile-co-ethylene glycol) for thermal management
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用于热管理的基于合成梳状聚（丙烯腈-乙二醇）的具有高相变焓的形状稳定相变材料
DOI：
10.1007/s11426-017-9119-2
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发表时间：
2017-10
期刊：
影响因子：
--
通讯作者：
Meifang Zhu
中科院分区：
文献类型：
--
作者：
Wei Chen;Hengxue Xiang;Yunmeng Jiang;Sayed Yaseen Rashdi;Meifang Zhu
以丙烯酸聚乙二醇甲醚酯（MPEGA）和丙烯腈（AN）为单体，通过简单自由基溶液聚合法制备了具有梳状结构的形状稳定的聚（丙烯腈-co-乙二醇）（PANEG）共聚物。采用傅里叶变换红外光谱（FTIR）、核磁共振氢谱（1H NMR）、碳谱（13 C NMR）、广角X射线衍射（WXAD）等手段对产物进行了表征。利用差示扫描量热仪（DSC）、偏光显微镜（POM）、红外热像仪和热重分析仪（TG）研究了MPEGA含量对PANEG材料储能性能、热可靠性和热稳定性的影响。梳状PANEG显示出良好的温度调节性能和热可靠性。随着MPEGA含量的增加，PANEG的相变焓增加，当MPEGA含量为80wt%时，合成的PANEG-80的相变焓达到106.70 J/g，经100次热循环后，其储热性能稳定。热红外图像和冷却曲线显示，合成的PANEG可以在22-31 °C的温度范围内持续25 min，表现出优异的温度调节性能。此外，梳状PANEG在二甲基亚砜（DMSO）中的溶解均匀，表明通过一步法湿法纺丝可以获得在智能调温纺织品和热能管理领域具有潜在应用价值的PANEG相变纤维。
Shape-stabilized poly(acrylonitrile-co-ethylene glycol) (PANEG) copolymer with comb-like structure was prepared via simple free-radical solution polymerization, where acrylic acid poly(ethylene glycol) methyl ether ester (MPEGA) and acrylonitrile (AN) were employed as monomers. Fourier transform infrared spectroscopy (FTIR),1H and13C nuclear magnetic resonance spectroscopy (1H and13C NMR), wide-angle X-ray diffraction (WXAD) were used to characterize the chemical structure of resultant PANEG. In addition, the influences of MPEGA contents on energy storage performance, thermal reliability and thermal stability of PANEG materials were evaluated based on differential scanning calorimetry (DSC), polarizing optical microscopy (POM), thermal infrared imager and thermogravimetry analyzer (TG). The comb-like PANEG demonstrated a favorable temperature regulation performance and thermal reliability. With the increase of MPEGA contents, the enthalpy of PANEG increased, and when the content of MPEGA was 80 wt%, the phase change enthalpy of synthesized PANEG-80 reached to 106.70 J/g with a stable heat storage performance after 100 thermal cycling. Thermal infrared images and cooling curves revealed that synthetic PANEG could sustain a temperature in ranges of 22–31 °C for continuous 25 min, presenting excellent temperature regulation performance. Also, comb-like PANEG could be uniformly dissolved in dimethyl sulfoxide (DMSO), indicating that PANEG phase change fibers with potential applications in fields of intelligent thermoregulating textile and heat energy management could be obtained via one-step wet spinning.
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DOI：
10.1080/15567036.2010.518217
发表时间：
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期刊：
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影响因子：
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DOI：
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发表时间：
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期刊：
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